68% (2005)

63% (2015)

51% (2009)

53% (2014)

64% (1993)

32% (1998)

59% (2014)

80% (1999)

64% (1996)

74% (1962)

54% (2015)

83% (2005)

69% (2001)

77% (2000)

80% (2008)

59% (1998)

44% (2004)

69% (2005)

57% (1992)

72% (2007)